Cruise reports from the marine monitoring

Reports from SMHI's regular marine monitoring programme. Data presented in the reports have been subject to preliminary quality control procedures only.

Cruise report from M/V Aura week 21-22, 2018

The warm and sunny weather in May, in combination with calm winds, had warmed the surface water, and the surface water temperature was above normal at all visited stations. High phytoplankton activity was found mainly at the stations in the Baltic Proper, indicating ongoing spring bloom. Large …

 
Type: Report
Author: Johan Kronsell
Published: Jul, 2018
Published: Last updated:

Cruise report from M/V Aura week 15-16, 2018

The spring bloom was ongoing in almost the whole area and large peaks in fluorescence was measured with the CTD.

The deep water in large parts of the Baltic Proper has oxygen concentrations near zero. Completely oxygen free areas, when toxic hydrogen sulphide is formed, were measured in the …

 
Type: Report
Author: Anna-Kerstin Thell
Published: Jun, 2018
Published: Last updated:

Cruise report from M/V Meri week 11-12, 2018

Due to the rough and cold weather and the resulting icing situation, the central parts of the Baltic Proper could not be visited. During the cruise, which is part of the Swedish pelagic monitoring programme, the Skagerrak, the Kattegat, the Sound, the Arkona Basin, the Bornholm Basin, the Hanö …

 
Type: Report
Author: Martin Hansson
Published: Apr, 2018
Published: Last updated:

Cruise report from R/V DANA week 3-5, 2018

The expedition was included within SLU:s International Bottom Trawl Survey and covered the Skagerrak and the Kattegat. Mapping of winter nutrient conditions was performed in the Skagerrak and 13 stations with complete hydrography were sampled. In the Kattegat area 12 stations were sampled with ctd …

 
Type: Report
Author: Anna-Kerstin Thell
Published: Mar, 2018
Published: Last updated:

Cruise report from M/V Meri week 4-5, 2018

In large areas of the Baltic Proper, the oxygen concentration in the deep water was close to zero. Anoxic conditions, when hydrogen sulfide can form, were found in the Western Gotland Basin from 80 meters depth and from 90-125 meters in the northern parts. In the Eastern Gotland Basin low levels of …

 
Type: Report
Author: Örjan Bäck, Johan Kronsell
Published: Mar, 2018
Published: Last updated:

Cruise report from M/V Aura week 50-51, 2017

The deep water, in large parts of the Baltic Proper, oxygen concentrations were near zero. Completely oxygen free areas were found in the Western Gotland Basin from 70 meters depth and in the Northern Baltic Proper from 90-125 meters depth. In the Eastern Gotland Basin low concentrations of …

 
Type: Report
Author: Martin Hansson
Published: Jan, 2018
Published: Last updated:

Cruise report from M/V Aura week 45-46, 2017

Initial problems with a winch caused the expedition to be delay already from the start, tough weather during the expedition, primarily in the Baltic, resulted in further delays. Because of these delays we had to skip three stations (P2, BY20 and ref M1V1) and we could only sample a few things at …

 
Type: Report
Author: Örjan Bäck
Published: Nov, 2017
Published: Last updated:

Cruise report from M/V Aura week 41, 2017

The stations in the Western and Eastern Gotland Basin could not be sampled due to delay caused by hard weather and technical problems with a winch. Totally six stations had to be cancelled.
In the Sound acute hypoxia was found directly below the stratification at 15 meters depth down to the bottom. …

 
Type: Report
Author: Martin Hansson
Published: Oct, 2017
Published: Last updated:

Cruise report from M/V Meri week 37, 2017

Oxygen concentrations close to zero were observed in all deep water areas in the Baltic Proper. Anoxic conditions, when hydrogen sulphide forms, were measured in the Western Gotland Basin from about 70 metres depth, in the Eastern Gotland Basin intermediate at 80 meters and nearest the bottom at …

 
Type: Report
Author: Anna-Kerstin Thell
Published: Sep, 2017
Published: Last updated:

Cruise report from R/V Aranda week 28-29, 2017

Oxygen concentrations close to zero were observed in the deep water everywhere in the Baltic Proper except for in the Arkona Basin. Anoxic conditions, when hydrogen sulphide forms, were measured in the Western Gotland Basin from about 80 metres depth, in the Eastern Gotland Basin nearest the bottom …

 
Type: Report
Author: Karin Wesslander
Published: Jul, 2017
Published: Last updated:

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